Lock



FIG. 1 is a perspective view of a lock;

FIG. 2 is a left side elevational view of the lock of FIG. 1 with the end cap open;

FIG. 3 is a top plan view of the lock of FIG. 1;

FIG. 4 is a front elevational view of the lock of FIG. 1;

FIG. 5 is a right side elevational view of the lock of FIG. 1 with the end cap open;

FIG. 6 is a rear elevational view of the lock of FIG. 1; and,

FIG. 7 is a bottom plan view of the lock of FIG. 1.

The broken lines are for illustration only and form no part of the claimed design. 

The ornamental design for a lock, as shown and described. 